Institute on Taxation and Economic Policy (ITEP)

While there may never be a good time to increase the federal gas tax, the same is not true when it comes to state gas taxes—perhaps because governors can't transfer billions of dollars from general funds to pay for roads. Lower gas prices helps.
Dec 12, 2014   NPR
At $100 million, it is the largest of the five bonds on the Nov. 5 ballot. While six other transportation bonds were voted on (and approved) since 2000, the need for this bond comes from a 2011 law that eliminated the indexing of the state gas tax.
Nov 1, 2013   Portland Press Herald
It may seem counter-intuitive to charge extra fees for the cleanest, most fuel-efficient vehicles on the road today - including those that qualify for a federal $7,500 credit. But ten states are doing just that to keep roads well-funded.
Jun 19, 2013   The New American